In the last issue, we talked about how the positioning can make the audio
equipment show better sound quality. Now let's put a few "arrays" into
practice:
317 ratio method
Divide the length of the room into three equal parts (three), place the
horns at one-third of the length (one), and place the horns at a distance of 0.7
times the length of two-thirds of the room (seven). The speaker preferably has a
slight inward projection angle, but no inward projection is acceptable, and the
listening position should not be placed against the rear wall.
Effect: This method is used in a space with a large size and a uniform
ratio (such as 1:1.25:1.6 or 1:1.6:2.5), and a balanced sound and a wide and
deep sound field can be obtained.
three-three-one ratio
Divide the length of the room into three equal parts (three) and the width
into three equal parts (three), and place the horn at the intersection of the
first equal parts of the length and width (one). The speakers can have a slight
inward projection angle, or even do not need to project inward, and the
listening position should not be placed against the rear wall.
Effect: This method is also used for larger and evenly proportioned spaces.
The only difference between it and the 317 ratio method is that the interval
between the two speakers is narrower. This method can also get a balanced sound
and a wide and deep sound field.
Pendulum method
Place the speakers between one-third and one-half the length of the room,
and then place the two speakers as close to the side walls as possible (if the
room is very wide, they do not need to be close to the side walls). The inward
projection angle of the two speakers should be greater than 45 degree. The
listening position should be about 0.5m-1m after the intersection of the
projection angle cross line.
Effect: This method is specially designed to deal with the shortcomings of
too sharp treble, too thin midrange and insufficient bass.
equilateral triangle method
The first condition is that the speaker should be away from the rear wall
(at least 1 meter above) and the side wall (at least 0.5 meters above). The
second condition is to draw an equilateral triangle between the two speakers and
the listening position. The third condition is that the inward projection angles
of the two speakers are also 45 degrees or more. The fourth condition is that
this equilateral triangle can be big or small. When the room is small and the
power of the rear stage is not large, the equilateral triangle is smaller; when
the room is large and the power of the rear stage is large, the equilateral
triangle is drawn larger.
Effect: Its advantage is that it can reduce the excessive interference of
the reflected sound from the four walls to the direct sound of the speaker, and
obtain a good sense of positioning and a wide and deep sound field. This is the
way to hear the most, most direct, and clearest details.
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